VacuTight™ fittings
For airtight connections at reduced pressure
VacuTight™ Fittings are designed to provide airtight, dependable connections under vacuum and low pressure conditions. Many of the VacuTight™ nuts have streamlined profiles for use in systems requiring a large number of connections in a small area. Furthermore, the VacuTight™ ferrule’s small size ensures sufficient nut/thread engagement, even in shallow ports. These features make VacuTight™ Fittings ideal for combinatorial chemistry, high throughput screening, clinical diagnostic, and other automated liquid handling applications.
The configuration of the VacuTight™ flat-bottom ferrules prevents over-compression and tubing ID reduction that can occur with many coned fittings. The result is more consistent aspirating and dispensing volumes across all system connections. The VacuTight™ fittings can also work well in some positive pressure applications. The pressure range for each fitting is listed below and depends upon the tubing used for the connection.
- For 1/16” & 1/8″ OD tubing connections into 1/4-28 & 10-32 flat-bottom ports
- Vacuum rated to 25 in-Hg (84 kPa)
- Improve transfer volume consistency
Product details
| Part No.* | Description | Port | Pressure Rating | Head Style | Material |
|---|---|---|---|---|---|
| P-844 | VacuTight Fitting for 1/16” OD Tubing, Short | 10-32 Flat-Bottom | 400–800 psi (27–55 bar) | Headless Knurl | PEEK Red |
| P-948 | VacuTight Fitting for 1/8” OD Tubing | 1/4-28 Flat-Bottom | 500–1,000 psi (34–69 bar) | Standard Knurl | PEEK Natural |
| P-840 | VacuTight Ferrule for 1/16” OD Tubing | 10-32 or 1/4-28 Flat-Bottom | 400–800 psi (27–55 bar) | - | ETFE Red |
| P-940 | VacuTight Ferrule for 1/8” OD Tubing | M6x1 or 1/4-28 Flat-Bottom | 500–1,000 psi (34–69 bar) | - | ETFE Red |
Resources
Consult the Periodic Table of Analytical Fittings for a quick overview, the Fittings 101 for guidance and learning, and the IDEX Catalogue for product details, or contact Biotech Fluidics for expert advice.
